Cisco 10000-2P2-2DC Software Guide - Page 68

Scaling Enhancements in Cisco IOS Release 12.3(7)XI1 Chapter 2 Scalability and Performance For more information on configuring L4R, see the "Redirecting Subscriber Traffic Using ISG Layer 4 Redirect" chapter in the Cisco IOS Intelligent Service Gateway Configuration Guide, Release 12.2 SB at the following URL: http://www.cisco.com/en/US/products/ps6566/products_configuration_guide_chapter09186a0080630d 65.html#wp1048970 For more information on configuring PBHK, see the "Configuring ISG Port-Bundle Host Key" chapter in the Cisco IOS Intelligent Service Gateway Configuration Guide, Release 12.2 SB at the following URL: http://www.cisco.com/en/US/products/ps6566/products_configuration_guide_chapter09186a0080630d 6c.html Scaling Enhancements in Cisco IOS Release 12.3(7)XI1 Cisco IOS Release 12.3(7)XI1 provides increased limits with FIB scaling, policy-map scaling, and queue scaling. FIB Scaling The FIB is a routing table that is used to look up the next hop route for the destination IP address and the reverse path forwarding (RPF) route using the source IP address. The FIB Scaling feature implements the following changes: • Up to 1 million routes in the global FIB table are supported without MPLS VPN configuration. • Total number of virtual routing and forwarding instances (VRFs) supported is 4095. - Up to 100 routes per VRF with 4095 VRFs configured. - Up to 70 routes per VRF with 4095 VRFs configured, plus 200,000 global BGP routes. - Up to 600 routes per VRF with 1000 or fewer VRFs configured. Policy-Map Scaling The Policy-Map Scaling feature increases the system-wide number of quality of service (QoS) policy maps that you can configure. Depending on the complexity of your configuration, the Cisco 10000 series router supports up to 4096 policy maps. In complex configurations the maximum number of policy maps can be as small as a few hundred. Additionally, when you use percent-based policing in a service policy, the system may convert a single customer-configured service to multiple service policies (which count against the 4096 limit). The system uses one such service policy for each different speed interface that uses a service policy with percent-based policing Each policy-map command counts as one policy map and applying the same policy map on different speed interfaces also counts as an extra policy map. The policy-map command syntax is unchanged. The maximum number of classes that you can configure in a policy is 127. Cisco 10000 Series Router Software Configuration Guide 2-6 OL-2226-23